This isn't what I ordered
ʃis naʋ tas kuo es pasuːtiːju
In Latvian Šis nav tas, ko es pasūtīju
Latvians are generally direct, and this is a common phrase to use.
Example
"Atvainojiet, šis nav tas, ko es pasūtīju. Es pasūtīju karbonādi, nevis zupu."